| 摘要 |
PROBLEM TO BE SOLVED: To provide an insertion device which can prevent outflow of liquid and air from a hollow part inside a sheath part, ensure mobility of a linear part, and ensure washability of the hollow part and a guide channel to which the linear part is extended.SOLUTION: An insertion device comprises: a sheath part 46 in which a hollow part 47 is formed; and a linear part which is extended along a line core axis through the hollow part 47 and rotates a raising base by moving along the line core axis with respect to the sheath part 46. The linear part is inserted to an insertion hole 55 while having a space between a base end wall part 53 of the sheath part 46 and the linear part. A seal member 57 with a tip connected to the linear part and with a base end connected to the sheath part 46 expands and contracts in response to the movement of the linear part. A passage part 61 formed at the base end wall part 53 comes close to the line core axis in a radial direction toward a tip opening from a base end opening. |
